IOP is a measurement of the fluid pressure inside the eye. The mean diurnal IOP was the average of the IOP values of the study eye (worse eye) at Week 12 measured at 8 AM, 12 Noon and 4 PM. For each study eye, IOP was either the average of 2 measurements, or, if a third measurement was required, the average of 3 measurements.

IOP is a measurement of the fluid pressure inside the eye. IOP of the study eye (worse eye) was measured at 8 AM, 12 Noon and 4 PM at Week 12. For each eye, IOP was either the average of 2 measurements, or, if a third measurement was required, the average of 3 measurements. A negative change from Baseline indicated improvement.

IOP is a measurement of the fluid pressure in the eye. The mean diurnal IOP was the average of the IOP values of the study eye (worse eye) measured at 8 AM, 12 Noon and 4 PM. For each eye, IOP was either the average of 2 measurements, or, if a third measurement was required, the average of 3 measurements.

IOP is a measure of the fluid pressure in the eye. The mean diurnal IOP was the average of the IOP values of the study eye (worse eye) at Week 12 measured at 8 AM, 12 Noon and 4 PM. For each eye, IOP was either the average of 2 measurements, or, if a third measurement was required, the average of 3 measurements.

IOP is a measurement of the fluid pressure inside the eye. IOP of the study eye (worse eye) was measured at 8 AM, 12 Noon and 4 PM at Week 6. For each eye, IOP was either the average of 2 measurements, or, if a third measurement was required, the average of 3 measurements. A negative change from Baseline indicated improvement.

Travatan® Z (travoprost ophthalmic solution 0.004%) administered as 1 drop in the affected eye(s) once a day for 4 weeks. Then, LUMIGAN® RC (bimatoprost ophthalmic solution 0.01%) administered as 1 drop in the affected eye(s) once daily in the evening for 12 weeks.

Drug: travoprost ophthalmic solution 0.004%

Travatan® Z (travoprost ophthalmic solution 0.004%) administered as 1 drop in the affected eye(s) once a day for 4 weeks.

Other Name: Travatan® Z

Drug: Bimatoprost ophthalmic solution 0.01%

LUMIGAN® RC (bimatoprost ophthalmic solution 0.01%) administered as 1 drop in the affected eye(s) once daily in the evening for 12 weeks.

Other Name: LUMIGAN® RC

Active Comparator: DuoTrav®

Travatan® Z (travoprost ophthalmic solution 0.004%) administered as 1 drop in the affected eye(s) once a day for 4 weeks. Then, DuoTrav® (travoprost 0.004% / timolol 0.5% combination ophthalmic solution) administered as 1 drop in the affected eye(s) once daily in the morning for 12 weeks.

Drug: travoprost ophthalmic solution 0.004%

Travatan® Z (travoprost ophthalmic solution 0.004%) administered as 1 drop in the affected eye(s) once a day for 4 weeks.

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For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01547598